Laser Dissimilar Joining of Al7075T6 with Glass-Fiber-Reinforced Polyamide Composite

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dc.contributor.authorUkar, Eneko
dc.contributor.authorArrizubieta, Jon Iñaki
dc.contributor.authorFerros, Mercedes
dc.contributor.authorAndres, Maite
dc.contributor.authorLiebana, Fernando
dc.contributor.institutionCOMPOSITE
dc.contributor.institutionTecnalia Research & Innovation
dc.contributor.institutionCOMPUTER_VISION
dc.date.issued2020-01-22
dc.descriptionPublisher Copyright: © 2020 by the authors.
dc.description.abstractDissimilar joining between metal and composite sheets is usually carried out by mechanical or adhesive joining. Laser dissimilar joining between metal and composite sheets could be an alternative to these methods, as it is a cost-effective and versatile joining technique. Previously, textured metallic and composite parts have been held together and heated with a laser beam while pressure is applied to allow the melted polymer to flow into the cavities of the metal part. The main issue of this process relates to reaching the same joint strength repetitively with appropriate process parameters. In this work, both initial texturing and laser joining parameters are studied for Al 7075-T6 and glass-fiber-reinforced PA6 composite. A groove-based geometry was studied in terms of depth-to-width aspect ratio to find an optimal surface using a nanosecond fiber laser for texturing. Laser joining parameters were also studied with different combinations of surface temperature, heating strategy, pressure, and laser feed rate. The results are relatively good for grooves with aspect ratios from 0.94 to 4.15, with the widths of the grooves being the most critical factor. In terms of joining parameters, surface reference temperature was found to be the most influential parameter. Underheating does not allow correct material flow in textured cavities, while overheating also causes high dispersion in the resulting shear strength. When optimal parameters are applied using correct textures, shear strength values over 26 kN are reached, with a contact area of 35 × 45 mm2.en
dc.description.statusPeer reviewed
dc.format.extent1
dc.format.extent8255405
dc.identifier.citationUkar , E , Arrizubieta , J I , Ferros , M , Andres , M & Liebana , F 2020 , ' Laser Dissimilar Joining of Al7075T6 with Glass-Fiber-Reinforced Polyamide Composite ' , Coatings , vol. 10 , no. 2 , 96 , pp. 96 . https://doi.org/10.3390/coatings10020096
dc.identifier.doi10.3390/coatings10020096
dc.identifier.issn2079-6412
dc.identifier.otherresearchoutputwizard: 11556/892
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85080895602&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofCoatings
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subject.keywordsLaser direct joining
dc.subject.keywordsLaser structuring
dc.subject.keywordsMetal polymer joint
dc.subject.keywordsGroove aspect ratio
dc.subject.keywordsShear strength
dc.subject.keywordsLaser direct joining
dc.subject.keywordsLaser structuring
dc.subject.keywordsMetal polymer joint
dc.subject.keywordsGroove aspect ratio
dc.subject.keywordsShear strength
dc.subject.keywordsLaser structuring;metal polymer joint
dc.subject.keywordsSurfaces and Interfaces
dc.subject.keywordsSurfaces, Coatings and Films
dc.subject.keywordsMaterials Chemistry
dc.subject.keywordsFunding Info
dc.subject.keywordsThis research was funded by the Basque Government grant number KK-2017/00088.
dc.subject.keywordsThis research was funded by the Basque Government grant number KK-2017/00088.
dc.titleLaser Dissimilar Joining of Al7075T6 with Glass-Fiber-Reinforced Polyamide Compositeen
dc.typejournal article
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